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Definitions of beryllium
  1. noun
    a light strong brittle grey toxic bivalent metallic element
Definition that contains beryllium
  • beryl the chief source of beryllium; colored transparent varieties are valued as gems
  • ytterbite a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium
  • plutonium trigger a steel or beryllium sphere containing plutonium 239 that triggers nuclear fission when compressed by explosives
  • alkaline-earth metal any of the bivalent metals of group II of the periodic table (calcium or strontium or barium or magnesium or beryllium)
  • chrysoberyl a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone
  • beryllium bronze a copper-base alloy containing beryllium
  • gadolinite a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium
  • plutonium pit a steel or beryllium sphere containing plutonium 239 that triggers nuclear fission when compressed by explosives
  • alkaline earth any of the bivalent metals of group II of the periodic table (calcium or strontium or barium or magnesium or beryllium)
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